Had to chime in here with a few points to consider about front wheel drive cars...
No (and I mean NO) true sports car has FWD (no Ferrari, Lambo, Porsche, AstonM., Lotus, Corvette, Viper, NSX, etc). Not one. If it has FWD ... it *ain't* a sports car (even if it looks like one). The reasons for this are:
1) The traction concern someone already mentioned. This is a catch-22 situation, the faster you accelerate, the more traction you lose.
2) Weight distribution. FWD cars have a disproportionately large % of weight over the front tires. This ruins the handling characteristics of the car. 50/50 is optimal for handling, the Mustang has 53/47.
FWD cars have better *traction* in the snow, but not better handling IMO (I've driven both types many times in snow). Plus, you can very easily rectify the snow traction problem w/ a RWD car simply by putting weight in the trunk (like sand bags or gym-weights). Also, you can get traction control as an option on the Mustang (I live in NJ and ordered it).